M. Dawson, L. Hoinville, B. Hosie, and N. Hunter, Guidance on the use of PrP genotyping as an aid to the control of clinical Scrapie, Vet Rec, vol.142, pp.623-625, 1998.

I. Palhière, D. François, J. Elsen, F. Barillet, Y. Amigues et al., Allele frequencies of the PrP gene in 29 French sheep breeds. Possible use in selection for resistance to scrapie, 7th World Congress on Genetics Applied to Livestock Production, 2002.

S. Benestad, P. Sarradin, T. B. Schönheit, J. Tranulis, M. Bratberg et al., Cases of scrapie with unusual features in Norway and designation of a new type, Nor98, Veterinary Record, vol.153, issue.7, pp.202-208, 2003.
DOI : 10.1136/vr.153.7.202

M. Baylis and K. Mcintyre, Transmissible spongiform encephalopathies: Scrapie control under new strain, Nature, vol.155, issue.7019, pp.810-811, 2004.
DOI : 10.1038/423498a

L. Detwiler and M. Baylis, The epidemiology of scrapie. Rev Sci Tech Off Int Epiz, pp.121-143, 2003.

P. Hopp, M. Omer, and B. Heier, A case-control study of scrapie Nor98 in Norwegian sheep flocks, Journal of General Virology, vol.87, issue.12, pp.3729-3736, 2006.
DOI : 10.1099/vir.0.81951-0

D. Green, D. R. Vilas, V. Birch, C. Johnson, J. Kiss et al., Demographic risk factors for classical and atypical scrapie in Great Britain, Journal of General Virology, vol.88, issue.12, pp.3486-3492, 2007.
DOI : 10.1099/vir.0.83225-0

A. Fediaevsky, S. Tongue, M. Nöremark, D. Calavas, G. Ru et al., A descriptive study of the prevalence of atypical and classical scrapie in sheep in 20 European countries, BMC Veterinary Research, vol.4, issue.1, p.19, 2008.
DOI : 10.1186/1746-6148-4-19
URL : https://hal.archives-ouvertes.fr/hal-00373589

G. Luhken, A. Buschmann, H. Brandt, M. Eiden, M. Groschup et al., Epidemiological and genetical differences between classical and atypical scrapie cases, Veterinary Research, vol.38, issue.1, pp.65-80, 2007.
DOI : 10.1051/vetres:2006046
URL : https://hal.archives-ouvertes.fr/hal-00902846

A. Fediaevsky, E. Morignat, C. Ducrot, and D. Calavas, A Case???Control Study on the Origin of Atypical Scrapie in Sheep, France, Emerging Infectious Diseases, vol.15, issue.5, pp.710-718, 2009.
DOI : 10.3201/eid1505.081119

A. Fediaevsky, P. Gasqui, D. Calavas, and C. Ducrot, Discrepant epidemiological patterns between classical and atypical scrapie in sheep flocks under French TSE control measures, The Veterinary Journal, vol.185, issue.3, 2009.
DOI : 10.1016/j.tvjl.2009.06.019

L. Dur, A. Beringue, V. Andréoletti, O. , R. F. Lai et al., A newly identified type of scrapie agent can naturally infect sheep with resistant PrP genotypes, Proceedings of the National Academy of Sciences, vol.102, issue.44, pp.16031-16036, 2005.
DOI : 10.1073/pnas.0502296102

M. Simmons, T. Konold, H. Simmons, Y. Spencer, R. Lockey et al., Experimental transmission of atypical scrapie to sheep, BMC Veterinary Research, vol.3, issue.1, p.20, 2007.
DOI : 10.1186/1746-6148-3-20

T. Moum, I. Olsaker, P. Hopp, T. Moldal, M. Valheim et al., Polymorphisms at codons 141 and 154 in the ovine prion protein gene are associated with scrapie Nor98 cases, Journal of General Virology, vol.86, issue.1, pp.231-235, 2005.
DOI : 10.1099/vir.0.80437-0

S. Benestad, J. Arsac, W. Goldmann, and M. Nöremark, Atypical/Nor98 scrapie: properties of the agent, genetics, and epidemiology, Veterinary Research, vol.39, issue.4, p.19, 2008.
DOI : 10.1051/vetres:2007056
URL : https://hal.archives-ouvertes.fr/hal-00390572

G. Cazeau, A. Fediaevsky, and D. Calavas, Prévalence des formes classique et atypique de tremblante chez les petits ruminants en France entre, Rev Med Vet, vol.6, pp.348-356, 2002.

E. Food and S. Autority, Scientific Report of the European Food Safety Authority on the Evaluation of Rapid post mortem TSE Tests intended for Small Ruminants, The EFSA Scientific Report, vol.31, pp.1-17, 2005.

E. Food and S. Autority, Scientific Report of the European Food Safety Authority on the Evaluation of Rapid post mortem TSE Tests intended for Small Ruminants (2). The EFSA Scientific Report, pp.1-46, 2005.

J. Arsac, O. Andréoletti, J. Bilheude, C. Lacroux, S. Benestad et al., Similar Biochemical Signatures and Prion Protein Genotypes in Atypical Scrapie and Nor98 Cases, France and Norway, Emerging Infectious Diseases, vol.13, issue.1, pp.58-65, 2007.
DOI : 10.3201/eid1301.060393

K. Livak, J. Marmaro, and J. Todd, Towards fully automated genome???wide polymorphism screening, Nature Genetics, vol.260, issue.4, pp.341-342, 1995.
DOI : 10.1016/0027-5107(93)90060-S

P. Kwok, High-throughput genotyping assay approaches, Pharmacogenomics, vol.1, issue.1, pp.95-100, 2000.
DOI : 10.1517/14622416.1.1.95

M. Olivier, L. Chuang, M. Chang, Y. Chen, D. Pei et al., High-throughput genotyping of single nucleotide polymorphisms using new biplex invader technology, Nucleic Acids Research, vol.30, issue.12, pp.30-53, 2002.
DOI : 10.1093/nar/gnf052

C. Moreno, K. Moazami-goudarzi, P. Laurent, G. Cazeau, O. Andréoletti et al., Which PrP haplotypes in a French sheep population are the most susceptible to atypical scrapie?, Archives of Virology, vol.15, issue.6, pp.1229-1232, 2007.
DOI : 10.1007/s00705-007-0956-7

G. Cocquyt, B. Driessen, and P. Simoens, Variability in the eruption of the permanent incisor teeth in sheep, Veterinary Record, vol.157, issue.20, pp.619-623, 2005.
DOI : 10.1136/vr.157.20.619

J. Roderick, D. Little, and B. Rubin, Statistical Analysis with Missing Data, 1988.

D. Lunn, A. Thomas, N. Best, and D. Spiegelhalter, WinBUGS -A Bayesian modelling framework: Concepts, structure, and extensibility, Statistics and Computing, vol.10, issue.4, pp.325-337, 2000.
DOI : 10.1023/A:1008929526011

G. Saunders, S. Cawthraw, S. Mountjoy, J. Hope, and O. Windl, PrP genotypes of atypical scrapie cases in Great Britain, Journal of General Virology, vol.87, issue.11, pp.3141-3149, 2006.
DOI : 10.1099/vir.0.81779-0

K. Mcintyre, D. R. Vilas, V. Gubbins, and S. , No temporal trends in the prevalence of atypical scrapie in British sheep, 2002???2006, BMC Veterinary Research, vol.4, issue.1, p.13, 2002.
DOI : 10.1186/1746-6148-4-13

A. Fediaevsky, D. Abrial, D. Calavas, and C. Ducrot, Does atypical scrapie pop ut at random? 12th Symposium on Veterinary Epidemiology and Economics, pp.1-3, 2009.

N. Hunter, Scrapie???Uncertainties, biology and molecular approaches, Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, vol.1772, issue.6, pp.619-628, 2007.
DOI : 10.1016/j.bbadis.2007.04.007
URL : https://hal.archives-ouvertes.fr/hal-00501545

J. Slate, Molecular evolution of the sheep prion protein gene, Proceedings of the Royal Society B: Biological Sciences, vol.13, issue.5, pp.2371-2377, 1579.
DOI : 10.1006/jmbi.1999.2831

M. Woolhouse, P. Coen, L. Matthews, J. Foster, J. Elsen et al., A centuries-long epidemic of scrapie in British sheep?, Trends in Microbiology, vol.9, issue.2, pp.67-70, 2001.
DOI : 10.1016/S0966-842X(00)01912-0

T. Sweeney and J. Hanrahan, The evidence of associations between prion protein genotype and production, reproduction, and health traits in sheep, Veterinary Research, vol.39, issue.4, p.28, 2008.
DOI : 10.1051/vetres:2008004
URL : https://hal.archives-ouvertes.fr/hal-00902926

R. Sawalha, L. Bell, S. Brotherstone, I. White, A. Wilson et al., Scrapie-resistant sheep show certain coat colour characteristics, Genetics Research, vol.39, issue.01, pp.9139-9185, 2009.
DOI : 10.1016/j.livprodsci.2005.09.005

R. Sawalha, S. Brotherstone, J. Conington, and B. Villanueva, Lambs with Scrapie Susceptible Genotypes Have Higher Postnatal Survival, PLoS ONE, vol.85, issue.11, 2007.
DOI : 10.1371/journal.pone.0001236.s004
URL : http://doi.org/10.1371/journal.pone.0001236

M. Bruce, TSE strain variation, British Medical Bulletin, vol.66, issue.1, pp.99-108, 2003.
DOI : 10.1093/bmb/66.1.99
URL : http://bmb.oxfordjournals.org/cgi/content/short/66/1/99

H. Simmons, M. Simmons, Y. Spencer, M. Chaplin, G. Povey et al., Atypical scrapie in sheep from a UK research flock which is free from classical scrapie, BMC Veterinary Research, vol.5, issue.1, p.8, 2009.
DOI : 10.1186/1746-6148-5-8

. Fediaevsky, Quantitative estimation of genetic risk for atypical scrapie in French sheep and potential consequences of the current breeding programme for resistance to scrapie on the risk of atypical scrapie Genetics Selection Evolution, p.14, 2010.